CN216503340U - Wheel tightening machine reference circle guiding mechanism - Google Patents

Abstract

The utility model relates to a reference circle adjusting mechanism of a wheel tightening machine, which consists of five tightening shafts, a tightening shaft main pushing cylinder and a blocking rod telescopic cylinder, wherein the reference circle adjusting mechanism of the wheel tightening machine is integrally integrated on a connecting plate, the five tightening shafts are driven by five main cylinders, two reference circle sizes are met during the maximum and minimum strokes, and the other reference circle size is ensured by five vertical blocking cylinders; the positioning device is simple in structure, convenient to use and accurate in positioning, and can adapt to the passing of reference circles of three different vehicle types; through reforming transform the reference circle guiding mechanism, install the smart location and block the cylinder additional, satisfy three kinds of motorcycle types general under the condition that does not increase new equipment or extra operating personnel, make the flexibility of this equipment improve greatly, realize compatible H9 tire reference circle 114.3mm, satisfy the trafficability characteristic of three models, solve red-flag H7, HS7, H9's mixed flow production problem.

Description

Wheel tightening machine reference circle guiding mechanism

Technical Field

The utility model relates to an adjusting mechanism, in particular to a reference circle adjusting mechanism of a wheel tightening machine.

Background

At present, in a red-flag new H general assembly workshop of an automobile company, H7 and HS7 are produced in a mixed flow mode, tires are assembled by being screwed down by a full-automatic robot, the reference circle of an H7 tire is 112mm, and the reference circle of an HS7 vehicle-type tire is 130 mm. In the conventional mechanism for adjusting the reference circle of the tire tightening machine, five tightening shafts are respectively pushed by five cylinders, and the reference circle formed by the five shafts has the dimensions of 112 and 130mm under the maximum and minimum strokes of the cylinders. However, the reference circle of the tire of a brand new vehicle type H9 is 114.3mm, the reference circle adjusting mechanism of the existing tire tightening machine cannot meet the requirement of general use, mixed flow production cannot be realized, and the original adjusting mechanism needs to be modified and three vehicle types need to be considered simultaneously.

The prior art discloses an automatic six-axis to five-axis shifting tightening machine for an automobile tire, wherein a button operation panel is fixed on a rear bottom plate, a servo motor is connected with the rear bottom plate and a tightening shaft, the tightening shaft is connected with a front bottom plate, a sliding groove is formed in the front bottom plate, a sliding plate is installed on the sliding groove, and an air cylinder is fixedly connected with the front bottom plate. The number of the servo motors, the sliding grooves, the sliding plates and the cylinders is six, and each cylinder corresponds to one tightening shaft. The prior art also discloses a multi-shaft bolt tightening machine, which has a plurality of bolt tightening heads and a motor, wherein: the machine base is assembled with the supporting disc through a small gear shaft, a small gear is arranged on the small gear shaft, a tightening motor is arranged in the center of the machine base and is connected with a large gear meshed with the small gear through a tightening main shaft; the reference circle adjusting motor is arranged on the supporting disc and connected with the star-shaped claw through a rotating shaft, a braking clutch is arranged on the rotating shaft, a connecting rod sliding block mechanism and a synchronous pulley mechanism are arranged on each pinion shaft, the tail ends of the connecting rod sliding block mechanism and the synchronous pulley mechanism are provided with bolt tightening heads, a clutch is also arranged on the pinion shaft, and an angle sensor is also arranged on the reference circle adjusting motor. The prior art also discloses a three graduation circle torque converter screw detects location guiding mechanism, three graduation circle torque converter screw detects location guiding mechanism includes the positioning mechanism mounting plate and feeds the assembly body, and installs the supporting component of positioning mechanism mounting plate top, it installs to feed the assembly body the upside of supporting component, install the photoelectric sensor assembly body on the supporting component.

However, the automatic tightening of tires of most manufacturers in the prior domestic main engine plants can only meet the requirement of the tire reference circle of one vehicle type, namely, the tire reference circles of the produced vehicle types are consistent and do not need to be adjusted. Three different reference circles of three models of red-flag H platforms need to be realized in one set of tire reference circle adjusting mechanism at the same time, and the requirement on the flexibility degree is very high. The three reference circles are produced by adopting a full-automatic tightening mixed line and are the first time in China.

Disclosure of Invention

The utility model aims to provide a reference circle adjusting mechanism of a wheel tightening machine, which aims to solve the problem of compatibility of the wheel tightening machine in a red flag H platform general assembly workshop to reference circles of different vehicle types under the condition of multi-platform mixed flow production.

The purpose of the utility model is realized by the following technical scheme:

a wheel tightening machine reference circle adjusting mechanism is composed of five tightening shafts 1, a propulsion cylinder 2 and a blocking cylinder 3;

each tightening shaft 1 is provided with a propulsion cylinder 2 in the circumferential direction, the propulsion cylinder 2 is fixed on a connecting plate 4, the connecting plate 4 is divided into an upper layer and a lower layer, the propulsion cylinder 2 is fixed on the bottom layer, a cylinder rod of the propulsion cylinder 2 is connected with the tightening shaft 1, an electromagnetic valve of the propulsion cylinder 2 is connected with a PLC, and the cylinder rod telescopically controls the diameter of a reference circle formed by the five tightening shafts 1;

the top layer of the connecting plate 4 is provided with five openings, and the upper end of the tightening shaft 1 penetrates through the openings and can move in the openings;

the vertical 1 of every axle of screwing up has arranged 1 respectively and has blockked the cylinder, blocks cylinder 4 and fastens in 4 backs of bottom connecting plate, links to each other with PLC, blocks that the cylinder pole of cylinder 4 can stretch out and draw back and prevents to impel that cylinder 2 impels.

Further, the cylinder block of the propulsion cylinder 2 is fixed to the connecting plate 4 by bolts.

Further, the cylinder rod of the propulsion cylinder 2 is connected to the tightening shaft 1 by a bolt.

Further, the connecting plate 4 is a pentagon.

Further, the opening of the top layer of the connecting plate 4 is an oval opening.

Further, the blocking cylinder 3 is fastened to the back of the bottom connecting plate 4 through bolts.

Compared with the prior art, the utility model has the beneficial effects that: the index circle adjusting mechanism of the wheel tightening machine is integrally integrated on a substrate, five tightening shafts are driven by five main cylinders, two index circle sizes are met during the maximum and minimum strokes, and the other index circle size is ensured by five vertical blocking cylinders;

the reference circle adjusting mechanism of the wheel tightening machine has the advantages of simple structure, convenience in use and accurate positioning, and can adapt to the passing of reference circles of three different vehicle types;

according to the utility model, the reference circle adjusting mechanism is modified, the fine positioning blocking cylinder is additionally arranged, the universality of three vehicle types is met under the condition that new equipment or additional operators are not added, the flexibility of the equipment is greatly improved, the compatibility with the tire reference circle of H9 of 114.3mm is realized, the trafficability of the three vehicle types is met, and the mixed flow production problem of the red flags of H7, HS7 and H9 is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a front view of a reference circle adjusting mechanism of the wheel tightening machine of the present invention;

fig. 2 is a rear view of fig. 1.

In the figure, 1, a tightening shaft 12, a propulsion cylinder 3, a blocking cylinder 4 and a connecting plate.

Detailed Description

The utility model is further illustrated by the following examples:

the present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, the pitch circle adjusting mechanism of the wheel tightening machine of the present invention is composed of five tightening shafts 1, a propulsion cylinder 2 and a blocking cylinder 3;

each tightening shaft 1 is provided with a propulsion cylinder 2 in the circumferential direction, and a cylinder block of the propulsion cylinder 2 is fixed on the connecting plate 4 through bolts. The connecting plate 4 is pentagonal and is divided into an upper layer and a lower layer. Wherein the propulsion cylinder 2 is fixed to the bottom floor. The cylinder rod of the propulsion cylinder 2 is connected to the tightening shaft 1 by a bolt. The electromagnetic valve of the propulsion cylinder 2 is connected with a PLC, the PLC controls the propulsion cylinder 2 to act, the variable pitch of the tightening shafts 1 is adjusted, the diameter of a reference circle formed by the five tightening shafts 1 is further adjusted, and when the cylinder rod contracts, the reference circle is enlarged, and when the cylinder rod extends, the reference circle is reduced.

The top layer of the connecting plate 4 is provided with five oval openings, and the upper end of the tightening shaft 1 penetrates through the oval openings and moves in the openings.

When the driving cylinders 2 are at original positions, the driving cylinders drive the five tightening shafts 1 to form a reference circle of 130mm, when the system receives vehicle type information through code scanning, the reference circle is 112mm, the PLC control program sends signals to the electromagnetic valves of the driving cylinders, the electromagnetic valves act to drive each driving cylinder 2 to fully extend to the maximum stroke, and the diameter of the reference circle formed by the five tightening shafts 1 is 112 mm.

At the vertical position of reference circle adjustment, 1 blocking cylinder is respectively arranged in the vertical direction of each tightening shaft 1, the blocking cylinder 3 is fastened on the back of the bottom layer connecting plate 4 through a bolt and is connected with the PLC, and a cylinder rod of the blocking cylinder 3 can stretch out and draw back to prevent the propulsion cylinder 2 from propelling. When the system detects that the reference circle of the vehicle model is 114.3mm through code scanning, the PLC control program controls the action of the electromagnetic valve, when the propulsion cylinder 2 is in the process of traveling, meets the blockage of the blocking cylinder 4 and stops at a middle position, and the reference circle formed by the five tightening shafts 1 is 114.3 mm. The combination of the five propulsion cylinders 2 and the five blocking cylinders 3 allows three reference circles to be considered.

Specifically, the method comprises the following steps:

when the vehicle type code is identified as HS7, the propulsion cylinder 2 is in a retraction state, and the fine limit of the blocking cylinder 3 enables the reference circle size formed by the five tightening shafts 1 to be 130 mm;

when the vehicle type code is identified as H7, the propulsion cylinder 2 is in an open state, and the size of a reference circle formed by the five tightening shafts 1 for precisely limiting the blocking cylinder 3 is 112 mm;

when the identification vehicle code is H9, the propulsion cylinder 2 is in a half open state, and the stopper cylinder 3 on the back surface of the adjustment mechanism is operated to make the reference circle size formed by the five tightening shafts 1 be 114.3 mm.

The tire assembling process flow comprises the following steps: code scanning recognition vehicle type → automatic adjustment of a pitch circle of a tightening machine → automatic gripping of a fastening standard by a robot → automatic gripping of a tire by a robot → entry of a vehicle into an automatic tightening station → photographing → feeding of a tire → starting of tightening program tightening → exit of the robot (next cycle).

The utility model adopts a skillful mechanical structure to realize the adjustment of three reference circles; two kinds of reference circles are guaranteed by pushing the maximum (position B in fig. 2) and minimum stroke (position a in fig. 2) of the cylinder 2, while the other kind of reference circle is guaranteed by the vertical blocking cylinder 3 on the back side; two groups of 10 cylinders are used for ensuring reference circles with different sizes, and the mechanism is originated in the aspect of flexible assembly of the tire tightening machine.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (6)

1. The utility model provides a wheel tightening machine reference circle guiding mechanism which characterized in that: the device consists of five tightening shafts (1), a propulsion cylinder (2) and a blocking cylinder (3);

each tightening shaft (1) is provided with a propulsion cylinder (2) in the circumferential direction, the propulsion cylinders (2) are fixed on a connecting plate (4), the connecting plate (4) is divided into an upper layer and a lower layer, the propulsion cylinders (2) are fixed on a bottom layer, a cylinder rod of each propulsion cylinder (2) is connected with the tightening shaft (1), an electromagnetic valve of each propulsion cylinder (2) is connected with a PLC, and the cylinder rod telescopically controls the diameter of a reference circle formed by five tightening shafts (1);

the top layer of the connecting plate (4) is provided with five open holes, and the upper end of the tightening shaft (1) passes through the open holes and can move in the open holes;

the vertical of every axle of screwing up (1) has arranged 1 respectively and has blockked the cylinder, has blockked cylinder (3) and has fastened in bottom connecting plate (4) back, links to each other with PLC, and the cylinder pole that blocks cylinder (3) can stretch out and draw back and prevent to propel cylinder (2) and impel.

2. The wheel tightening machine reference circle adjusting mechanism according to claim 1, wherein: and the cylinder seat of the propulsion cylinder (2) is fixed on the connecting plate (4) through a bolt.

3. The wheel tightening machine reference circle adjusting mechanism according to claim 2, wherein: and a cylinder rod of the propulsion cylinder (2) is connected with the tightening shaft (1) through a bolt.

4. The wheel tightening machine reference circle adjusting mechanism according to claim 1, wherein: the connecting plate (4) is pentagonal.

5. The wheel tightening machine reference circle adjusting mechanism according to claim 1, wherein: the top layer of the connecting plate (4) is provided with an oval hole.

6. The wheel tightening machine reference circle adjusting mechanism according to claim 1, wherein: the blocking cylinder (3) is fastened on the back of the bottom layer connecting plate (4) through a bolt.

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